EP4314641A1

EP4314641A1 - Adjustable optical system for lighting units

Info

Publication number: EP4314641A1
Application number: EP22715102.4A
Authority: EP
Inventors: Hildebrand BENJAMIN
Original assignee: Zumtobel Lighting GmbH
Current assignee: Zumtobel Lighting GmbH
Priority date: 2021-03-25
Filing date: 2022-03-22
Publication date: 2024-02-07
Also published as: WO2022200356A1; CN116917664A; DE202021101565U1; US20240117956A1

Abstract

The invention relates to an optical system (2) for lighting units (S), having: an optical support (3) which extends linearly along a longitudinal axis (A) between a light inlet opening (LE) and a light outlet opening (LA) and which delimits a receiving area (R) for receiving optical elements (4, 5) between the openings (LE, LE), wherein an inner wall (30) of the optical support (3) facing the receiving area (R) has at least two structural sections (31), which are axially offset to each other with respect to the longitudinal axis (A), for releasably mounting a respective optical element (4, 5) in the receiving area (R).

Description

Adjustable optical system for lights Description:

The present invention relates to an optics system for lights with an optics carrier serving to accommodate optics elements, as well as a lighting system with a light and an optics system of the prescribed type placed on top of it.

Luminaires and optics that can be used for them are known in principle. By means of the optics, a defined light emission characteristic of the lamp should be provided and, if necessary, be able to be changed. In a simple variant, certain optical elements, such as lenses and associated diffuser disks, are fixedly mounted at various fixed distances from the light source in order to obtain a desired light image. In order to get a different light image, different optics must be used in this lall.

However, solutions are also known in which the optical elements are provided so as to be adjustable with respect to the light source. For this purpose, solutions of any complexity for the electrical or mechanical adjustment of the optical elements are known, which generally require the use of a new lamp that has this technology installed.

Consequently, solutions are known in which, for example, lenses and panes are mechanically installed at a fixed distance and cannot be changed. Known adjustable solutions are comparatively expensive and complex and, moreover, generally require the provision of a completely new luminaire.

It is therefore an object of the present invention to provide a particularly simple optics system and a lighting system equipped with it, which can be manufactured, assembled and/or adjusted to set or change a desired light image in a simple and cost-effective manner.

This object is solved by the subject matter of the independent claims. The dependent claims develop the central idea of the present invention in a particularly advantageous manner.

According to a first aspect, the present invention relates to an optical system for lights. This has an optics carrier or a carrier housing. The optics carrier extends in a straight line along a longitudinal axis between a light entry opening and a light exit opening. The optics carrier is or preferably extends in the form of a tube and particularly preferably has a cylindrical shape. The optics carrier limited between the Openings (i.e. the light entry opening and the light exit opening) have a receiving space for receiving optical elements. An inner wall of the optics carrier directed toward the receiving space has at least two or a plurality of structural sections arranged axially offset relative to one another with respect to the longitudinal axis, each for detachably holding one of the optics elements in the receiving space.

By means of an optical system provided in this way, any desired light image can be generated using arbitrarily selected optical elements. This is made possible in particular by the fact that any optical elements can be selectively inserted into any of the positions that are axially offset from one another in the structural sections. Since these structural sections are provided axially offset from one another along the longitudinal axis, any optical element or any combination of optical elements can be arranged at the desired axial distance from the light source or luminaire, or the optical elements can also be provided at any desired distance from one another depending on the number of structural sections - so arranged in series with each other - are. Depending on the optical elements used, a beam angle can be varied (reduced or extended) along the longitudinal axis (thus achieving a zoom effect) and/or the sharpness of a light cone in the edge area can be optionally softened by providing them differently along the longitudinal axis, in order to achieve so-called "beam shaping". “-Effect to achieve or to make the edge area either sharp-edged (more) or soft (er). Depending on the use of optical elements and their combination, a wide variety of light images can be generated in this way, while the overall structure of the optical system is particularly simple and its provision is made possible in a cost-effective manner. Due to the detachable mounting of the optics elements, an adjustment of the light image can also be easily implemented, so that the handling of the optics system is particularly easy overall.

The structural sections can preferably each be provided circumferentially along the inner wall and preferably in a plane perpendicular to the longitudinal axis or extend accordingly. Thus, a secure positioning of an optical element can be achieved by correspondingly defined structural sections that are preferably clearly aligned with respect to the direction of light emission.

The structural sections can have regions distributed around the circumference or can extend in a closed manner around the circumference. Depending on requirements, a desired mount for the optical elements can thus be provided. While an arrangement of the structural sections distributed around the circumference requires less material and less coverage of the optical elements, a closed arrangement on the circumference makes it possible Design of the structural sections an all-round secure support or storage of an optical element and an overall stable design of the support housing.

The structural sections can each have groove sections which extend around the longitudinal axis and are open radially with respect to the longitudinal axis towards the receiving space. In this way, the optical elements can be securely inserted into precisely these groove sections in a particularly simple manner and thus optimally mounted with respect to the longitudinal axis.

The groove sections can preferably be designed as annular grooves, which are preferably designed to be closed all the way around the longitudinal axis. Ring grooves not only form a particularly secure and stable mount for the optics element, but also allow an operator to attach the optics element intuitively. In particular, the circumferentially closed design increases the overall stability of the carrier housing, so that it can be designed with less material use due to the structuring, which in turn is reflected in a more cost-effective production.

The groove sections preferably widen radially with respect to the longitudinal axis and toward the receiving space. In this way, a safe introduction of the optical element into the groove sections is made possible. In addition, certain tolerances can be compensated in this way; this both with respect to the longitudinal axis in the radial and in the axial direction. For example, a corresponding optical element to be accommodated can be provided with a defined oversize, which is then inserted into the outwardly tapering groove sections and thus pressed in and thus held securely.

The structural sections can be provided at least in part equidistantly along the longitudinal axis. Thus, the optical elements can be arranged in defined, fixed and preferably uniform steps as desired at different distances from the light entry opening or the light exit opening and thus a light provided with the optical system. This is particularly advantageous in the case of an optical system with a large number of structural sections, since in this way a light emission characteristic can be adapted, preferably linearly.

Viewed in the direction of the longitudinal axis, the optics carrier can have a round or polygonal cross section. The round configuration enables particularly simple production. A polygonal cross-section can, for example, serve to prevent the optical elements from rotating relative to the carrier housing if the optical elements are designed accordingly. This can also be advantageous for aesthetic reasons. In addition the grip of the carrier housing can be increased by a polygonal cross-sectional shape. The carrier housing itself can also be accommodated in a preferably non-rotatable manner in relation to other components, as is described below by way of example with a view to a system housing.

As already mentioned, the optics carrier can preferably be tubular or cylindrical. The optics carrier is thus designed to be simple in structure with a high degree of functional flexibility.

The optics carrier and at least its inner wall can be mirror-symmetrical with respect to a mirror plane having the longitudinal axis. On the one hand, this is advantageous in terms of manufacturing technology. A simple and clear structure can also be provided in this way, which in turn enables intuitive operation of the optical system.

The optics carrier can preferably be composed of (at least) two partial elements. The partial elements are particularly preferably (at least) two half-shell elements. A parting plane of these partial elements preferably has the longitudinal axis. A particularly simple construction of the carrier housing can thus be provided. The provision of the carrier housing in separable partial elements also enables a particularly simple insertion of the optics elements into the open optics carrier, which is then closed in a particularly simple manner by joining these two partial elements. A separable or divisible configuration and function of the sub-elements enables the optical elements to be easily inserted and/or changed at any time, in that the receiving space and thus the structural sections can be easily uncovered by this separation.

The partial elements can particularly preferably be identical. The use of identical parts in turn has an advantageous effect on cost-effective production of the same. Only one tool is required to produce the entire carrier housing. Incorrect installation can also be avoided in this way.

The sub-elements can each have coupling structures in order to connect the sub-elements to one another. The connection is preferably detachable. The connection can also preferably be made without tools. By providing the preferably integral coupling structures, a simple and stable connection of the sub-elements can be provided. Since these are also preferably provided outside the receiving space, they collide neither with the structural sections nor with any optical elements that are to be received. Moreover, the coupling structures are thus outside of one Light passage distance, so that they - for example due to shading - do not have a negative effect on the light image. In a particularly preferred embodiment, the coupling structures can also be provided on the face side in connection areas of the sub-elements lying in the parting plane, so that they are provided completely hidden in the assembled state. However, the coupling structures are preferably provided on an outer wall of the carrier housing facing away from the receiving space. Thus, they are not only provided in a simple manner in terms of production technology, but also represent a secure and stable connection of the partial elements, since they can be designed as desired.

The partial elements can be connected to one another in an articulated manner via a joint section around a pivot axis in order to pivot the partial elements relative to one another and thus selectively uncover the receiving space for inserting the optical elements into the structural sections. On the one hand, such an articulated section enables the partial elements to be handled in a manner that prevents them from being lost. On the other hand, a defined positioning of the partial elements relative to one another is automatically provided. Overall, the handling during assembly or adjustment of the light image is thus simplified.

In a particularly preferred embodiment, the coupling structures can have the joint section (or vice versa). In this case, the coupling structures can be designed in such a way that they are provided, for example, on two opposite sides with respect to the longitudinal axis on the carrier housing or the partial elements. If the coupling structure is separated on one of the sides while it is maintained on the other side, the coupling structure on the same other side can be used as a joint section. For example, one sub-element in a coupling structure has a projection (e.g. pin or pin) extending parallel to the longitudinal axis and the counterpart of the coupling structure on the other sub-element has a corresponding recess (e.g. blind hole or through-opening) extending along the longitudinal axis, into which the pen or pin is preferably inserted releasably. In a particularly preferred embodiment, two coupling structures can be provided on each side of the carrier housing, axially offset along the longitudinal axis, which have protruding projections directed in opposite directions or towards one another, which engage in correspondingly provided recesses (i.e. e.g. directed towards or away from each other). Thus, an overall safe coupling of the sub-elements can be provided, while the coupling structure can be used at the same time in a particularly simple manner, optionally as a joint section.

The pivot axis particularly preferably runs parallel to the longitudinal axis. A particularly simple pivoting of the partial elements can thus be made possible. This is given in particular when, as described above, the coupling structures have the articulated section.

The optics carrier or its partial elements can be produced as an injection molded part. The optics carrier can thus be provided in a particularly simple manner. In particular, the separate variant of the optics carrier in two or more sub-elements enables particularly simple production here, since demoulding of these components after the injection molding process is particularly simple and non-destructive with regard to the injection mold, especially when the structural sections are designed in the form of grooves. Thus, an overall cost-effective production of the carrier housing can be made possible.

The optics system can also have a system housing for accommodating the optics carrier, which surrounds the optics carrier on the outside on the peripheral side. The optics carrier can thus be used as a type of cartridge which can be inserted into the system housing in a simple manner after the optics elements have been accommodated in the desired structural sections. In such an embodiment variant, additional coupling structures may be omitted, since the optics carrier is preferably held together by the system housing.

The optics carrier can be inserted into the system housing along the longitudinal axis. Such an axial insertion enables the optical system to be assembled in a particularly simple and at the same time secure manner. A subsequent adjustment of the light image by moving the optical elements can also be made possible in a simple manner by simply pulling the optics carrier out of the system housing, moving the optics elements and pushing the optics carrier back in.

The system housing and the optics carrier or the carrier housing can have corresponding connection structures on the sides facing one another (ie the side of the optics carrier directed radially outwards and the inside of the system housing directed radially inwards). These can guide the housings during insertion along the longitudinal axis, preferably relative to one another, or they can guide the optics carrier during insertion along the longitudinal axis relative to the system housing. More preferably, the connecting structures can be designed in such a way that they prevent the housings (ie the system housing and the carrier housing or optics carrier) from rotating relative to one another about the longitudinal axis. This enables simple and reliable installation with a defined alignment of the housings to one another. Incorrect installation can also be avoided by appropriate design of the connection structures, for example by providing and/or designing the connection structures asymmetrically are and only a clear assignment - so with respect to the longitudinal axis circumferential orientation to each other - allows assembly.

The system housing can also have two holding sections, which hold the optics carrier axially between them and particularly preferably clamp it. The holding sections can preferably be provided on the opposite ends of the optics carrier axially with respect to the longitudinal axis. The holding sections can preferably be webs that protrude radially inwards with respect to the longitudinal axis. For example, the respective holding section can have an annular projection that protrudes radially inward in the form of a ring. A particularly simple and cost-effective structure for securely positioning and mounting the optics carrier in the system housing can thus be provided.

One of the holding sections, preferably the holding section facing the light exit opening, can be detachably provided on/in the system housing. The optics carrier can thus be exposed axially in a simple manner, for example by removing this detachable holding section, in order to remove the optics carrier for the purpose of adjusting the light image, for example. The releasably provided holding section can be attached, for example, by a rotary movement; For this purpose, it can preferably have a corresponding screw or bayonet structure, which is designed to correspond with a corresponding counter-structure on the side of the system housing.

The optics system can also have an attachment which is preferably detachable on the side facing the light exit opening and is provided in such a way that light emitted via the light exit opening passes through the attachment for light emission from a lamp equipped with the optics system. The attachment can be designed in any way and be designed and provided, for example, to fulfill aesthetic, optical, manufacturing or static tasks. For example, in the simplest embodiment, it can be a simple decorative ring. It can also be a designed lamp attachment. It can also be an attachment that defines the light cone, for example. The attachment may also include optical features such as a reflector. The attachment can also be made of a reflective material, for example.

The attachment can have one of the holding sections. This is particularly useful for the detachable version. Thus, the structure of the optical system as a whole can be simplified. A light image can also be adjusted overall in a particularly simple manner in that the optics carrier is exposed by automatically removing the attachment together with the holding section, and the optics elements can thus be adjusted can be removed. On this occasion, the attachment can then be exchanged, if required and without additional installation effort. After inserting the optics carrier and putting on (e.g. screwing on) the attachment together with the holding section, the optics system is then ready for operation again.

The attachment can be provided on the optics carrier or, if present, on the system housing. The optics system is therefore of particularly simple design and the attachment of the attachment can be effected in a simple manner.

The attachment can preferably carry an optics part (for example a lens or a diffuser) in a preferably detachable manner and in such a way that the light passing through the attachment at least partially passes through the optics part for optically influencing the light. The optical function of the optical system can be expanded with the attachment.

On its side facing the light entry opening, the optics system can have a fastening section for fastening the optics system to a lamp in such a way that light from the lamp passes through the optics system along the longitudinal axis first via the light entry opening and then through the light exit opening. Thus, a simple attachment of the optics system to a lamp can be provided. Since this is also provided on a side facing the light entry opening, a corresponding luminaire can be provided in an optimized manner with regard to the optical system and preferably close to the light entry opening. A particularly compact design can also be achieved in this way.

The fastening sections can be provided on the optics carrier or, if present, on the system housing. An overall particularly simple design of the optical system can thus be provided.

The fastening section can preferably have a thread or part of a bayonet connection in order to fasten the optical system preferably by relative rotation about the longitudinal axis. An equally intuitive and secure attachment of the optical system can thus be provided. This can also be operated intuitively by an operator, thus reliably avoiding Lehle installation.

The optical system can also preferably have at least one optical element, as has already been described above. The optical element is then inserted into one of the structural sections so that it can be removed in such a way that a light that is coupled via the light entry opening and light that is coupled out again via the light exit opening can use the optical element for the optical Influencing the light at least partially and preferably completely passes through. The optics element preferably extends transversely or perpendicularly to the longitudinal axis over the entire recording space in order to be arranged in a safe and defined manner in the light path. In any case, by means of the optical system, a corresponding optical element can be provided in any desired and particularly simple manner for the defined setting of a desired light image.

The optical system can preferably have at least two optical elements, each of which is inserted in one of the structural sections in such a way that they are spaced apart from one another when viewed axially with respect to the longitudinal axis (i.e. in a row with respect to one another with respect to the longitudinal axis) in such a way that via the Light coupled into the light entry opening and coupled out again via the light exit opening passes through the at least two optical elements for optically influencing the light at least partially and preferably completely. A combination of optical elements can thus be provided in a simple manner and a light image can be varied in a defined manner by variations of their relative axial distance from one another with respect to the longitudinal axis.

The optics elements particularly preferably have a peripheral contour on the outside, which corresponds to the contour of the optics carrier in the area of the structural sections. A defined alignment and a secure fit of the optics elements in the optics carrier can thus be ensured. A desired light pattern can thus be achieved particularly precisely and also maintained during the period of operation.

The optics elements can be clamped at least partially or closed on the outside circumferentially by the optics carrier radially with respect to the longitudinal axis in order to ensure a particularly firm and secure fit of the optics elements.

The optical elements can be selected from at least one from the group of lenses, such as lens lenses, or diffuser disks, such as diffuser disks, and the like. The invention is not limited to any specific optical element here. By providing one or more optical elements at any distance from a light source and relative to one another if there are several optical elements, countless light emission characteristics or light images can be made possible using this optical system. This is all the more the case if an attachment provided on the light exit opening is also provided with corresponding further optical parts.

According to a further aspect, the present invention also relates to a lamp system with a lamp, such as preferably an LED lamp (LED=Light Emitting Diode), and an optical system according to the present invention. The optics system is arranged in relation to the lamp and these are preferably connected to one another via the fastening section such that light from the lamp first passes through the optics system via the light entry opening and then the light exit opening for light emission from the lighting system. By appropriately providing optical elements at any position of the structural sections, any desired light image can be generated, which in turn can be adjusted in a particularly simple manner by exchanging the optical elements in type and/or sequence and/or position with respect to the structural sections and thus the lamp or be adjusted.

The lamp can be any type of lamp that can be equipped with a corresponding optical system. For example, it can be a spotlight or spotlight or a downlight and much more.

It can also be a surface-mounted lamp, recessed lamp, pendant lamp, floor lamp, table lamp and much more.

Further refinements and advantages of the present invention are described with reference to the exemplary embodiments of the ligures of the accompanying drawings. Show it:

Lig. 1 is a perspective view of a lighting system according to a first embodiment of the present invention,

Lig. 2 is a perspective sectional view of a part of the lighting system according to the invention according to Lig. 1,

Lig. 3 is a perspective front view of a lamp with a system housing of the lighting system according to the invention according to Lig. 1,

4 shows a perspective view of an optics carrier with the holding section or decorative ring of the lamp according to the invention as per lig. 1 removed,

Lig. 5 is a perspective view of the optics carrier according to Lig. 4 with its two

Partial elements in a disassembled state and here two optical elements used, and

FIG. 6 is a perspective sectional view of part of a lighting system according to a second embodiment of the present invention. The figures show two exemplary embodiments of a lighting system 1 according to the present invention or individual components thereof. In particular, Figures 1 to 3 and 6 show a lamp S as part of the lighting system 1. In Figures 1, 2,

4, 5 and 6 also shows an optics system 2 of the lighting system 1 (in FIG. 3 only a part thereof), which also represents an independent part of the present invention and is therefore initially described below.

The optics system 2 for lights S has an optics carrier 3 . This extends in a straight line and here preferably in a tubular or cylindrical manner between a light entry opening LE and a light exit opening LA along a longitudinal axis A. The optics carrier 3 delimits a receiving space R between the openings LE, LA for accommodating optical elements 4, 5. In the case of the optical elements 4 , 5 can be, for example, a lens 4, such as a Frensel lens, or a diffusing disk 5, such as a diffuser disk, and the like.

As can be seen in particular from Figures 2, 4 and 6, an inner wall 30 of the optics carrier 3 directed towards the receiving space R can have at least two structural sections 31 which are arranged axially offset relative to one another with respect to the longitudinal axis A, each for the detachable mounting of an object element 4, 5 in the receiving space R . A total of twelve such structural sections 31 are provided in the illustrated exemplary embodiments. These are also provided here with a unique numbering (here 1 to 12; cf. FIG. 5) in order to ensure error-free insertion of the optical elements 4, 5 at defined positions in order to achieve a desired light image.

The structural sections 31 can each be provided or extend circumferentially along the inner wall 30 and preferably in a plane perpendicular to the longitudinal axis A, and thus, as can be seen in FIGS. 2, 5 and 6, form uniform structures. The structural sections 31 can each extend around the longitudinal axis A, as can be seen, for example, in FIG. 1 . This can be made possible, for example, by providing the structure sections with structure areas distributed over the circumference or, as shown in the exemplary embodiment, by a structure that is closed all the way round. Consequently, the structural sections 31 can have groove sections which are open radially with respect to the longitudinal axis A towards the interior 30, such as these in particular in FIGS.

5 and 6 can be found. The groove sections can, as shown, be designed as annular grooves, which preferably—as here—are designed to be closed all the way around the longitudinal axis A. The structural sections 31 thus form a particularly secure receptacle for the optical elements 4, 5, as will be described below. As can be seen for example from FIGS. 2, 5 and 6, the groove sections can expand radially with respect to the longitudinal axis A and towards the receiving space R. Consequently, the groove sections form a kind of guide bevel in order to enable particularly simple insertion of the optics elements 4 , 5 and preferably also to accommodate any play between the optics element 4 , 5 and the optics carrier 3 .

As can be seen from Figures 2, 5 and 6, the structural sections 31 can be provided at least in part along the longitudinal axis A, preferably equidistantly, in order to enable a defined and uniform adjustment and therefore positioning of the optical elements 4, 5, preferably to achieve a (preferably linear ) to allow change of a light emission characteristic.

As can be seen in particular from FIGS. 1 and 4, viewed in the direction of the longitudinal axis A, the optics carrier 3 can have a round cross section. This can be provided in a particularly simple manner in terms of manufacturing technology. Other cross-sectional shapes are also conceivable, such as polygonal cross-sectional shapes of any kind, such as quadrangular, pentagonal, hexagonal, octagonal, square, rectangular, etc.

As can be seen for example from FIG. 4, the optics carrier 3 or, as can be seen for example from FIGS. The optics elements 4, 5 can thus be accommodated in a particularly simple manner and the optics carrier 3 can be produced easily.

As can be seen in particular from FIGS. 4 and 5, the optics carrier 3 can be composed of two or more partial elements 32 here. As can be seen from FIG. 5, the partial elements 32 can preferably be half-shell elements. A parting plane of the optics carrier 3 for forming or separating the partial elements 32 can preferably have the longitudinal axis A, as can be derived from FIGS. 4 and 5, for example.

In particular with reference to FIG. 5 it can be seen that the partial elements 32 are preferably of identical design. The production of the same and thus of the optics carrier 3 as a whole can therefore be carried out particularly easily and with little use of tools.

As can be seen in particular from looking at FIGS. 4 and 5 together, the partial elements 32 can each have coupling structures 33, 34 in order to connect the partial elements 32 to one another. Here the coupling structures 33, 34 are preferably at one dem Receiving space R facing away from the outer wall 35 of the optics carrier 3 is provided. Thus, the coupling structures 33, 34 can be provided and designed in any way outside of the receiving space R that determines the light emission. The optical system can thus be functionally optimized without influencing the light emission characteristics.

The partial elements 32 can be connected by means of the coupling structures 33, 34, preferably detachably and/or without tools. In the exemplary embodiment shown here, the coupling structures 33, 34 consist of two coupling partners, one of the coupling partners 33 having a projection or pin 330 projecting here parallel to the longitudinal axis A. As can be seen in FIG. 5, two corresponding projections 330 are provided here on each side and are directed away from one another. The corresponding coupling partner 34 here has a corresponding recess 340, which is also directed along the longitudinal axis A and which, corresponding to the projections 330, is present in duplicate and spaced apart axially. The two partial elements 32 are then rotated and guided towards one another in such a way that the corresponding coupling partners of the coupling structures 33, 34 fit together in order to form the closed ring shape of the optics carrier 3, as shown in FIG. The pins 330 snap into the corresponding recesses 340 . A secure connection of the partial elements 32 is achieved by the spaced and opposite orientation of these coupling structure partners 33, 34 here.

Partial elements 32 can particularly preferably be connected to one another in an articulated manner via a joint section 37 around a pivot axis X in order to pivot partial elements 32 relative to one another and thus selectively expose receiving space R for inserting optical elements 4, 5 into structural sections 31. For example, the interacting coupling structures 33, 34 can then be provided on the sides opposite the joint sections 37, which are brought together when the partial elements 32 are pivoted back to close the optics carrier 3.

In a particularly preferred embodiment, it is conceivable for the coupling structures 33, 34 to have the articulated section 37 at the same time, as shown. Here, in particular, the design of the connection braced against one another, consisting of the projection 330 and the recess 340, is appropriate. The pivot axis X here particularly preferably runs parallel to the longitudinal axis A, as can be seen from FIGS. 4 and 5 in the present exemplary embodiment.

Markings M1, M2 on the partial elements 32 can support the operator in the proper disassembly and assembly of the partial elements 32 for inserting or replacing the optical elements 4, 5. The optics carrier 3 or its partial elements 32 can be produced as an injection molded part. In particular, the multi-part configuration of the optics carrier 3 in several partial elements 32 shown here is particularly suitable for production as an injection molded part, since this allows simple and preferably non-destructive demoulding after the injection molding process, so that corresponding tools can be used to produce numerous partial elements 32. The use of the same parts for the partial elements 32 to form the optics carrier 3 also has the effect of increasing cost efficiency.

As can be seen in particular from FIGS. 1 to 3 and 6, the optics system preferably also has a system housing 6 for accommodating the optics carrier 3 . As can be seen in particular from FIGS. 2 and 6, the system housing 6 surrounds the optics carrier 3 at least partially on the outside peripheral side. As can be seen from FIGS. 2 and 6, the system housing 6 completely accommodates the optics carrier 3 here. The optics carrier 3 can thus be used and inserted in the manner of a cartridge. Thus, the optics carrier 3 can preferably be provided so that it can be inserted into the system housing 6 along the focal axis A, which enables a particularly simple assembly. With reference to FIGS. 3 to 6, the system housing 6 on the one hand and the optics carrier 3 on the other hand can have corresponding connection structures 36, 66 on the sides 35, 60 facing one another. These connecting structures 36, 66 can guide the optics carrier 3 along the longitudinal axis A relative to the system housing 6 during insertion and preferably prevent these components (i.e. system housing 6 and optics carrier 3) from rotating relative to one another around the longitudinal axis A. Also, with an asymmetrical distribution of the connection structures 36, 66 or different configurations thereof (both shown in the exemplary embodiment shown), incorrect installation can be avoided or a uniquely defined installation orientation can be made possible. Markings M6, M3 on the system housing 6 on the one hand and the optics carrier 3 on the other hand make it easier for the operator to correctly orientate the components 3, 6 relative to one another and thus ensure quick and reliable assembly.

The optics carrier 3 and in particular its sub-elements 32 can have peripheral webs 38 . On the one hand, these can give the optics carrier 3 a high degree of dimensional stability even with a small wall thickness. On the other hand, these webs 38 can serve to provide the connection structures 36 described above by means of corresponding recesses, as can be seen in particular from FIG. 4 . The or part of the coupling structures 33 , 34 can also be integrated into the webs 38 . As can be seen in particular from FIGS. 2 and 6, the system housing 6 can have two holding sections 61, 62 here, preferably at the opposite ends of the optics carrier 3 axially with respect to the longitudinal axis A, which hold the optics carrier 3 axially between them and preferably clamp them therebetween. Thus, a safe positioning of the optics carrier 3 with respect to the longitudinal axis A can be made possible when viewed axially.

One of the holding sections—here preferably the holding section 61 facing the light exit opening LA—can be provided on the system housing 6 in a detachable manner. In principle, of course, both of the holding sections 61, 62 can also be provided in a correspondingly detachable manner. In order to achieve this, the detachable holding section 61 can be formed in the shape of a ring 7 that can be screwed on here by means of a bayonet connection 71, as can be seen in ligures 1, 2, 4 and 6.

The optical system 2 can also have an attachment 7 which is preferably detachably provided on the side facing the light exit opening LA such that light emitted via the light exit opening LA passes through the attachment 7 for the light emission of the lamp S. This essay 7 can be the ring 7 described above, as shown in ligures 4 and 6, for example. In this attachment or ring 7, for example, an optics part 72 (cf. Lig. 6; comparable or identical to the optics elements 4, 5) can be detachably clipped onto the side facing the light entry opening LE, for example, via holding structures 70 or axially together with the optics carrier 3 be pinched so as to further affect the light emission characteristics of the lamp S.

The system housing 6 according to the exemplary embodiment of Ligur 6 has a widened light emission section 63 on the side of the light exit opening LA. This is formed integrally with the system housing 6 here. It is also conceivable for this light emission section 63 to be detachable—for example as part of a separate attachment 7. The system housing 6 preferably has a (further) attachment 7 optically downstream from the optics carrier 3 (and here also the above-described attachment 7 ), ie seen in an extension with respect to the longitudinal axis A. This is provided here from the front on the distal end of the light-emitting section 63 and is preferably plugged or also screwed onto the system housing 6 via a preferably detachable connection 71 - here via a receiving section 64 . This attachment 7 carries a further optics part 72 in order to further influence the light emission characteristics of the lamp S if required. The optics part 72 is preferably likewise detachably clipped onto the attachment 7 via retaining structures 70, for example, or clamped axially together with the system housing 6 (here, for example via the receiving section 64). The attachment 7 can simply be a decorative ring, which enables the optical system 2 to be closed in an aesthetically pleasing manner at the front. However, the attachment 7 can also be any other attachment 7 that preferably also influences the optical light emission characteristic. This can then have further optics parts 72 (e.g. lenses and/or diffusers) in any way. For this purpose, the attachment 7 can, as already described, carry the optics part(s) 72, preferably detachably, in such a way that the light passing through the attachment 7 can have this optics part 72 - or also a plurality of optics parts 72 preferably provided axially in a row with respect to the longitudinal axis A (cf. FIG. 6) - at least partially passes through for the optical influencing of the light.

As can be seen in particular from the representation in FIGS. 2 and 6 and as already described above, the attachment 7 or one of the attachments 7 (here the attachment 7 provided adjacent to the optics carrier 3 in FIGS. 2 and 6) can preferably be one of the holding sections 61 have. This holding section 61 is formed integrally with the ring 7 here. By screwing this attachment 7 on, the holding section 61 can be positioned accordingly in order to ultimately hold or clamp the optics carrier 3 between this holding section 61 and the other holding section 62 .

The attachment 7 can be provided on the optics carrier 3 or, as shown, on the system housing 6; This can be done, for example, via a connection 71 that is rotatable about the longitudinal axis A or otherwise detachable, such as the bayonet connection 71 shown here, or by plugging it in, for example, along the longitudinal axis A according to the plug-in connection 71 shown in FIG aesthetically pleasing conclusion of the optical system 2 formed or additional optical functions in the form of additional optical parts 72 are provided downstream in the light emission direction. The variability of the optical system 2 as a whole can thus be further increased.

The optics system 2 can have a fastening section 20 for fastening the optics system 2 to the luminaire S on its side facing the light entry opening LE. This is preferred in such a way that light from the lamp S first passes through the optical system 2 along the longitudinal axis A via the light entry opening LE and then the light exit opening LA. The fastening section 20 can be provided on the optics carrier 3 or, as shown, on the system housing 6 .

The fastening section 20 can preferably have a thread or part of a bayonet connection in order to fasten the optical system 2 preferably by relative rotation about the longitudinal axis A. In order to avoid accidental detachment of the optical system 2 from the lamp S, a locking mechanism M can be provided, which, in the locking position, locks the optical system 2 on the one hand and the lamp S on the other hand around the axis of rotation. For this purpose, one of the optics system 2 and lamp S (here the optics system 2) can have a latching projection 8 projecting radially inwards here and the other of the optics system 2 and lamp S (here the lamp S) can have a latching projection 8 here outwards and in the locking position shown to the latching projection 8 towards open detent recess 9 have. In the locking position, these snap into one another in such a way that they prevent a relative rotation of the optical system 2 and the light S here around the longitudinal axis A and thus prevent these parts from becoming detached from one another. The locking mechanism M is preferably designed for releasable locking. In the embodiment shown here, for example, the latching recess 9 can be part of a release lever 10 which is pushed radially outward into the locking position with the latching projection 8 by means of a spring element 11 .

As already described above, the optics system 2 also has at least one or more optics elements 4 , 5 . Each optical element 4, 5 can be detachably inserted or inserted into one of the structural sections 31, as can be seen in particular from Figures 2, 5 and 6, so that light coupled in via the light entry opening LE and coupled out again via the light exit opening LA at least partially passes through the optical element(s) 4, 5 for optically influencing the light, as can be seen in particular from the sectional representation of FIGS. In FIG. 6 only one optical element 4 is provided as an example. If several optics elements 4, 5 are provided, as shown by way of example in FIG. 2, these are each inserted into one of the structural sections 31 so that they are spaced apart from one another when viewed axially with respect to the longitudinal axis A—that is, with respect to the longitudinal axis A, axially in a row - Arranged in the receiving space R such that light coupled in via the light entry opening LE and coupled out again via the light exit opening LA passes through the at least two optical elements 4, 5 for optically influencing the light at least partially and preferably completely.

As can be seen in particular from the ligures 2 , 5 and 6 , the optics elements 4 , 5 can have an external peripheral contour which corresponds to the contour of the optics carrier 3 in the area of the corresponding structural section 31 . A particularly secure and firm seat of the optics elements 4, 5 in the optics carrier 3 can thus be made possible.

In a particularly preferred embodiment, the optics elements 4, 5 can be clamped radially with respect to the longitudinal axis A, at least partially or closed, circumferentially on the outside of the optics carrier 3 (ie its associated structural section 31). In the figures 1, 2 and 6, a lighting system 1 is shown with a lamp S and an optical system 2 according to the invention. The optical system 2 is arranged in relation to the luminaire S and these are preferably connected to one another via the fastening section 20 in such a way that light from the luminaire S first passes through the optical system 2 via the light entry opening LE and then the light exit opening LA for light emission from the lighting system 1. This can be seen in particular from FIGS. Due to the above-described, variable arrangement of the optical elements 4, 5, which then inevitably also pass through the light of the lamp S when installed, a desired light pattern can be generated in a particularly simple manner and adjusted or changed if necessary. As can be seen by way of example in FIG. 6, the luminaire 1 can be optically optimized further with additional optical parts 72 .

As can be seen by looking at FIGS. 2 and 6 together, these exemplary embodiments differ here only in the design of the system housing 6. The optics carrier 3 is preferably identical, so that it can be used as a type of cartridge in any desired embodiment. Depending on the intended use, the position, number and type of optical elements 4, 5 can then be easily adjusted. If necessary, additional optical parts 72 can also be provided.

The moisture S is shown here in the form of a spotlight, with the invention not being restricted to a specific type of moisture.

The humidity S is preferably in the form of FED humidity, as can be seen, for example, from FIGS. 2 and 3 and in part also from FIG. In this case, the moisture S has an FED module 100 as the dampening solution, which here has an FED or an FED cluster as the fencing source, preferably arranged on a printed circuit board. An optical means in the form of a fin 101 is provided downstream of the FED module 100 in the direction of emission of the flux, in order to emit the flux from the humidity S here into the optical system 2 in the desired manner.

A mixing chamber 102 is provided here between the FED module 100 and the fin 101 for the homogeneous mixing of the shavings emitted by the FED module 100 in order in this way to generate an overall particularly homogeneous shaving delivery. In principle, however, all known fountain solutions are conceivable. For example, the FED dampening solution can also be combined with a reflector or a light-guiding component for defined light emission.

The dampening solution 100 is preferably arranged in a dampening housing 103 here. The moisture housing 103 can be designed here in the form of a (here movable) moisture head, which can be pivotably mounted, for example, via a swivel arm 104 . At the end of the housing 103 facing away from the moisture Pivoting arm 104 has a coupling section 105 for the electrical and preferably also mechanical connection of the lighting system 1 or the lamp S. The coupling section 104 is designed here in such a way that it can be inserted, for example, into an elongate lighting mounting rail and can be electrically and/or mechanically coupled to it . The pivoting arm 104 is preferably hollow in order to guide electrical conductors for operating the lighting system 1 or the lighting S therein.

The present invention is not limited by the embodiment described above, provided that it is covered by the subject matter of the following claims. The features described above can be combined and exchanged in any way with and among one another.

Claims

Expectations

1. Optical system (2) for lamp (S), comprising: an optics carrier (3) extending in a straight line between a light entry opening (LE) and a light exit opening (LA) along a longitudinal axis (A), which between the openings (LE, LE) a receiving space (R) for receiving optics elements (4, 5), wherein an inner wall (30) of the optics carrier (3) directed towards the receiving space (R) has at least two structural sections (31) arranged axially offset relative to one another with respect to the longitudinal axis (A). each for the detachable mounting of an optical element (4, 5) in the receiving space (R).

2. Optical system (2) according to claim 1, wherein the structural sections (31) are each provided circumferentially along the inner wall (30) and preferably in a plane perpendicular to the longitudinal axis (A).

3. Optical system (2) according to one of the preceding claims, wherein the structural sections (31) each have groove sections which extend around the longitudinal axis (A) and are open radially with respect to the longitudinal axis (A) towards the receiving space (R).

4. Optical system (2) according to claim 3, wherein the groove sections are designed as annular grooves, which are preferably designed to be closed all the way around the longitudinal axis (A).

5. Optical system (2) according to claim 3 or 4, wherein the groove sections widen radially with respect to the longitudinal axis (A) and towards the receiving space (R).

6. Optical system (2) according to one of the preceding claims, wherein the structural sections (31) are provided at least in part along the longitudinal axis (A) equidistantly.

7. Optical system (2) according to one of the preceding claims, wherein the optics carrier (3) seen in the direction of the longitudinal axis (A) has a round or polygonal cross section, and / or wherein the optics carrier (3) is tubular.

8. Optical system (2) according to one of the preceding claims, wherein the optics carrier (3), at least its inner wall (30), is formed with mirror symmetry in relation to a mirror plane having the longitudinal axis (A).

9. Optical system (2) according to one of the preceding claims, wherein the optics carrier (3) is composed of two partial elements (32), preferably of two half-shell elements, wherein a parting plane preferably has the longitudinal axis (A). ok Optical system (2) according to claim 9, wherein the partial elements (32) are identical.

11. Optical system (2) according to claim 9 or 10, wherein the partial elements (32) respectively

Have coupling structures (33, 34), preferably on an outer wall (35) of the optics carrier (3) facing away from the receiving space (R), in order to connect the partial elements (32) to one another, preferably detachably and/or without tools.

12. Optical system (2) according to one of claims 9 to 11, wherein the partial elements (32) are connected to one another in an articulated manner via a joint section (37) about a pivot axis (X) in order to pivot the partial elements (32) relative to one another and so optionally to expose the receiving space (R) for inserting the optical elements (4, 5) into the structural sections (31).

13. Optical system (2) according to claim 11 in conjunction with claim 12, wherein the coupling structures (33, 34) have the joint section (37).

14. Optical system (2) according to claim 12 or 13, wherein the pivot axis (X) runs parallel to the longitudinal axis (A).

15. Optical system (2) according to one of the preceding claims, wherein the optics carrier (3) or, if present, its partial elements (32) is/are produced as an injection molded part.

16. Optical system (2) according to any one of the preceding claims, further comprising a system housing (6) for receiving the optics carrier (3), which surrounds the optics carrier (3) on the outside peripheral side.

17. Optical system (2) according to claim 16, wherein the optics carrier (3) can be inserted into the system housing (6) along the longitudinal axis (A).

18. Optical system (2) according to claim 17, wherein the system housing (6) and the optics carrier (3) on the mutually facing sides (35, 60) have corresponding connection structures (36, 66) which longitudinally hold the optics carrier (3) when inserted of the longitudinal axis (A) relative to the system housing (6) and preferably prevent rotation of these relative to one another about the longitudinal axis (A).

19. Optical system (2) according to one of the preceding claims, wherein the system housing (6), preferably at the opposite ends of the optics carrier (3) axially with respect to the longitudinal axis (A), has two holding sections (61, 62) which hold the optics carrier (3) hold axially between and preferably clamp.

20. Optical system (2) according to claim 19, wherein one of the holding sections (61, 62), preferably the holding section (61) facing the light exit opening (LA), is detachably provided on the system housing (6).

21. Optical system (2) according to one of the preceding claims, further comprising an attachment (7), which is preferably detachably provided on the side facing the light exit opening (LA) in such a way that light emitted via the light exit opening (LA) can penetrate the attachment (7 ) for the light output of the lamp (S).

22. Optical system (2) according to claim 21, wherein the attachment (7) has one of the holding sections (61).

23. Optical system (2) according to claim 21 or 22, wherein the attachment (7) is provided on the optics carrier (3) or, if present, on the system housing (6). 24. Optical system (2) according to any one of claims 21 to 23, wherein the attachment (7) is an optical part

(72) preferably releasably carried in such a way that the light passing through the attachment (7) at least partially passes through the optics part (72) for optically influencing the light.

25. Optical system (2) according to one of the preceding claims, wherein the optical system (2) on its side facing the light entry opening (LE) has a fastening section (20) for fastening the optical system (2) to a lamp (S) such that light of the light (S) passes through the optical system (2) along the longitudinal axis (A) first via the light entry opening (LE) and then the light exit opening (LA). 26. Optical system (2) according to claim 25, wherein the attachment portion (20) on the

Optics carrier (3) or, if present, on the system housing (6) is provided.

27. Optical system (2) according to claim 25 or 26, wherein the fastening section (20) preferably has a thread or part of a bayonet connection in order to fasten the optical system (2) preferably by relative rotation about the longitudinal axis (A).

28. Optical system (2) according to one of the preceding claims, further comprising at least one optical element (4, 5), which is inserted into one of the structural sections (31), so that light coupled in via the light entry opening (LE) and via the light exit opening (LA) again decoupled light the optical element (4, 5) for optically influencing the light at least partially passes through.

29. Optical system (2) according to one of the preceding claims, having at least two optical elements (4, 5), which are each used in one of the structural sections (31), so that viewed axially with respect to the longitudinal axis (A) they are spaced apart from one another such in the Accommodating space (R) are arranged so that via the light entry opening (LE) coupled in and via the light exit opening (LA) coupled light again passes through the at least two optical elements (4, 5) for optically influencing the light at least partially.

30. Optical system (2) according to claim 28 or 29, wherein the optical elements (4, 5) have an outer circumferential contour which corresponds to the contour of the optics carrier (3) in the region of the structural sections (31).

31. Optical system (2) according to one of claims 28 to 30, wherein the optical elements (4, 5) are clamped at least partially or closed circumferentially on the outside of the optical system carrier (3) radially with respect to the longitudinal axis (A). 32. Optical system (2) according to one of claims 28 to 31, wherein the optical elements (4, 5) have at least one from the group of lenses (4), such as Frensel lenses, or diffuser disks (5), such as diffuser disks, and the like.

33. Lighting system (1) comprising a lamp (S), preferably an LED lamp, and an optical system (2) according to any one of the preceding claims, wherein the

Optical system (2) is arranged in relation to the lamp (S), preferably these are connected to one another via the fastening section (20) in such a way that light from the lamp (S) first enters the optical system (2) via the light entry opening (LE) and then the light exit opening (LA) for the light output of the lighting system (1) passes through.